Slag foaming in smelting reduction processes

Kimihisa Ito, Richard J. Fruehan

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In order to understand the effect of slag composition on foaming in the smelting reduction process, slag foaming was quantitatively studied for CaO-SiO2-FeO slags in the temperature range of 1250-1400 °C. It was found that slag foaming could be characterized by a foaming index Σ which is equal to the retention or travelling time of the gas in the slag and by the foam life. The effects of P2O5, S, MgO, and CaF2 on foaming were studied. As expected, slag foaming increased with increasing viscosity and decreasing surface tension. The results were extrapolated to the bath smelting process to predict the foam height. Slag foaming heights as high as 3-5 meters are predicted for a typical operation.

Original languageEnglish
Pages (from-to)151-156
Number of pages6
JournalSteel Research
Volume60
Issue number3-4
Publication statusPublished - 1989
Externally publishedYes

Fingerprint

smelting
foaming
slags
Smelting
Slags
phosphorus pentoxide
foams
Foams
Surface tension
baths
interfacial tension
Gases
Viscosity
viscosity
Chemical analysis
gases

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Ito, K., & Fruehan, R. J. (1989). Slag foaming in smelting reduction processes. Steel Research, 60(3-4), 151-156.

Slag foaming in smelting reduction processes. / Ito, Kimihisa; Fruehan, Richard J.

In: Steel Research, Vol. 60, No. 3-4, 1989, p. 151-156.

Research output: Contribution to journalArticle

Ito, K & Fruehan, RJ 1989, 'Slag foaming in smelting reduction processes', Steel Research, vol. 60, no. 3-4, pp. 151-156.
Ito, Kimihisa ; Fruehan, Richard J. / Slag foaming in smelting reduction processes. In: Steel Research. 1989 ; Vol. 60, No. 3-4. pp. 151-156.
@article{1a3d7eaa66ad4ca196f07749c10be4c7,
title = "Slag foaming in smelting reduction processes",
abstract = "In order to understand the effect of slag composition on foaming in the smelting reduction process, slag foaming was quantitatively studied for CaO-SiO2-FeO slags in the temperature range of 1250-1400 °C. It was found that slag foaming could be characterized by a foaming index Σ which is equal to the retention or travelling time of the gas in the slag and by the foam life. The effects of P2O5, S, MgO, and CaF2 on foaming were studied. As expected, slag foaming increased with increasing viscosity and decreasing surface tension. The results were extrapolated to the bath smelting process to predict the foam height. Slag foaming heights as high as 3-5 meters are predicted for a typical operation.",
author = "Kimihisa Ito and Fruehan, {Richard J.}",
year = "1989",
language = "English",
volume = "60",
pages = "151--156",
journal = "Steel Research International",
issn = "1611-3683",
publisher = "Wiley-VCH Verlag",
number = "3-4",

}

TY - JOUR

T1 - Slag foaming in smelting reduction processes

AU - Ito, Kimihisa

AU - Fruehan, Richard J.

PY - 1989

Y1 - 1989

N2 - In order to understand the effect of slag composition on foaming in the smelting reduction process, slag foaming was quantitatively studied for CaO-SiO2-FeO slags in the temperature range of 1250-1400 °C. It was found that slag foaming could be characterized by a foaming index Σ which is equal to the retention or travelling time of the gas in the slag and by the foam life. The effects of P2O5, S, MgO, and CaF2 on foaming were studied. As expected, slag foaming increased with increasing viscosity and decreasing surface tension. The results were extrapolated to the bath smelting process to predict the foam height. Slag foaming heights as high as 3-5 meters are predicted for a typical operation.

AB - In order to understand the effect of slag composition on foaming in the smelting reduction process, slag foaming was quantitatively studied for CaO-SiO2-FeO slags in the temperature range of 1250-1400 °C. It was found that slag foaming could be characterized by a foaming index Σ which is equal to the retention or travelling time of the gas in the slag and by the foam life. The effects of P2O5, S, MgO, and CaF2 on foaming were studied. As expected, slag foaming increased with increasing viscosity and decreasing surface tension. The results were extrapolated to the bath smelting process to predict the foam height. Slag foaming heights as high as 3-5 meters are predicted for a typical operation.

UR - http://www.scopus.com/inward/record.url?scp=0024916682&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024916682&partnerID=8YFLogxK

M3 - Article

VL - 60

SP - 151

EP - 156

JO - Steel Research International

JF - Steel Research International

SN - 1611-3683

IS - 3-4

ER -